From: Fuyao Kashizuku <fuyao@sjterm.com>
To: Lee Jones <lee@kernel.org>, Chen-Yu Tsai <wens@csie.org>,
Jernej Skrabec <jernej.skrabec@gmail.com>,
Samuel Holland <samuel@sholland.org>,
linux-arm-kernel@lists.infradead.org,
linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org,
Andre Przywara <andre.przywara@arm.com>
Cc: Jianzhang Mai <maijianzhang@allwinnertech.com>
Subject: [PATCH] mfd: sun4i-gpadc: adaptation interrupt number
Date: Wed, 27 Dec 2023 10:01:17 +0800 [thread overview]
Message-ID: <ZYuFbUUus9apiCpq@debian.cyg> (raw)
The identifiers are used as IRQ resource numbers, where 0 is treated
specially.
This fixes sun4i-gpadc-iio probe failed when request irq.
The backstack:
WARNING: CPU: 3 PID: 1 at drivers/base/platform.c:451
__platform_get_irq_byname+0xb8/0xc4
0 is an invalid IRQ number
Modules linked in:
CPU: 3 PID: 1 Comm: swapper/0 Not tainted 6.7.0-rc6 #9
Hardware name: Allwinner sun8i Family
unwind_backtrace
show_stack
dump_stack_lvl
__warn
warn_slowpath_fmt
__platform_get_irq_byname
platform_get_irq_byname
sun4i_irq_init
sun4i_gpadc_probe
platform_probe
really_probe
__driver_probe_device
driver_probe_device
__driver_attach
bus_for_each_dev
bus_add_driver
driver_register
do_one_initcall
do_initcall_level
do_initcalls
kernel_init_freeable
kernel_init
Log reports:
sun4i-gpadc-iio sun6i-a31-gpadc-iio.0: error -EINVAL: IRQ FIFO_DATA_PENDING
not found
sun4i-gpadc-iio: probe of sun6i-a31-gpadc-iio.0 failed with error -22
Signed-off-by: Fuyao Kashizuku <fuyao@sjterm.com>
---
Changes in v2:
- Fix the commit message.
- Add the backstack.
- Add the log reports.
- Use the correct full name and email address.
- Correct the subsystem to mfd.
- Link to v1: https://lore.kernel.org/lkml/YwdhTlk+9h+9Mrwm@scg/
include/linux/mfd/sun4i-gpadc.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/linux/mfd/sun4i-gpadc.h b/include/linux/mfd/sun4i-gpadc.h
index ea0ccf33a459..021f820f9d52 100644
--- a/include/linux/mfd/sun4i-gpadc.h
+++ b/include/linux/mfd/sun4i-gpadc.h
@@ -81,8 +81,8 @@
#define SUN4I_GPADC_TEMP_DATA 0x20
#define SUN4I_GPADC_DATA 0x24
-#define SUN4I_GPADC_IRQ_FIFO_DATA 0
-#define SUN4I_GPADC_IRQ_TEMP_DATA 1
+#define SUN4I_GPADC_IRQ_FIFO_DATA 1
+#define SUN4I_GPADC_IRQ_TEMP_DATA 2
/* 10s delay before suspending the IP */
#define SUN4I_GPADC_AUTOSUSPEND_DELAY 10000
--
2.39.2
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next reply other threads:[~2023-12-27 2:02 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-27 2:01 Fuyao Kashizuku [this message]
2024-01-09 20:19 ` [PATCH] mfd: sun4i-gpadc: adaptation interrupt number Jernej Škrabec
2024-01-11 11:11 ` (subset) " Lee Jones
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